<!DOCTYPE html>
<!-- saved from url=(0016)http://localhost -->
<html>
<head>
  <script type='text/javascript' src='src/popup.js'></script>
  <link rel="stylesheet" type="text/css" href="css/popup.css" />
</head>
<body>
  <button onclick='sendMsg("ECHO")'>Background Echo</button>
  <br>
  <div id="echo">Nothing</div>
</body>
</html>
